Energy flow: past paper questions
Real questions on energy flow
The newest 20 of 46 written questions. Open one to see it on the real paper.
- 0610/31 · May/June 2026 · Q8d[2]
In the wild, Arabian oryx all live in similar ecosystems. Describe what is meant by an ecosystem.
See it on the paper → - 0610/32 · May/June 2026 · Q6a[2]
Describe what is meant by the term biodiversity.
See it on the paper → - 0610/43 · May/June 2026 · Q5b(i)[3]
Use the information in Figure 5.2 and Table 5.1 to construct a pyramid of energy on the grid. Label each trophic level.
See it on the paper → - 0610/43 · May/June 2026 · Q5b(ii)[1]
State one reason for using a pyramid of energy rather than a pyramid of biomass.
See it on the paper → - 0610/32 · February/March 2026 · Q7b[1]
State the source of energy for this food web.
See it on the paper → - 0610/31 · October/November 2025 · Q6c(i)[3]
Complete the sentences to describe the data shown in Fig. 6.1. Overall the population size increased and then decreased. In 1998, the population size of red king crabs was . The largest population size of red king crabs was in the year . The population size in 1995 was the same as the population size in the year
See it on the paper → - 0610/31 · October/November 2025 · Q6c(ii)[3]
Using the data in Fig. 6.1, calculate the percentage increase in the red king crab population between 1995 and 1999. Give your answer to the nearest whole number. %
See it on the paper → - 0610/31 · October/November 2025 · Q8a(i)[4]
Table 8.1 describes ways carbon is transferred in the carbon cycle. Complete Table 8.1 to show how carbon is transferred in the carbon cycle, and the names of the processes. Table 8.1 transfer of carbon name of the process from animals or plants to the atmosphere from the atmosphere to plants from to fossil fuel from p...
See it on the paper → - 0610/32 · May/June 2025 · Q7b(iii)[1]
State the name of a producer shown in Fig. 7.2.
See it on the paper → - 0610/32 · May/June 2025 · Q7b(v)[1]
Using Fig. 7.2, complete a food chain that contains the orangutan and two other species.
See it on the paper → - 0610/32 · May/June 2025 · Q7b(vi)[2]
The species shown in Fig. 7.2 are found in a rainforest ecosystem. Describe what is meant by the term ecosystem.
See it on the paper → - 0610/41 · May/June 2025 · Q1a(i)[1]
State where the organisms in trophic level 1 in Fig. 1.1 get their energy from.
See it on the paper → - 0610/41 · May/June 2025 · Q1a(ii)[2]
Calculate the percentage of energy transferred between trophic levels 2 and 3 in Fig. 1.1. Give your answer to one significant figure.
See it on the paper → - 0610/41 · May/June 2025 · Q1a(iii)[2]
State two reasons why the energy decreases between trophic levels 1 and 4, as shown in Fig. 1.1.
See it on the paper → - 0610/41 · May/June 2025 · Q1a(iv)[2]
Describe the advantages of representing food chains using a pyramid of energy compared with a pyramid of biomass.
See it on the paper → - 0610/22 · October/November 2024 · Q34[1]
Approximately how much energy is lost between the producers and the secondary consumers?
See it on the paper → - 0610/33 · October/November 2024 · Q8a[2]
Describe what is meant by the term producer.
See it on the paper → - 0610/31 · May/June 2024 · Q5c[1]
State the position plants occupy in a food chain.
See it on the paper → - 0610/41 · May/June 2024 · Q7a[6]
Complete Fig. 7.1.
See it on the paper → - 0610/43 · May/June 2024 · Q5b(ii)[1]
State the principal source of energy for this food web.
See it on the paper →
What examiners said
Comprehensive responses • The majority of candidates knew that the sun is the source of energy for the food web. Limited responses • Some candidates would benefit from realising that producers are not the ultimate source of energy in a food web.
— Examiner report, February/March 2026, 0610/32 Q7(b) (Cambridge)
Most candidates were able to construct a food chain using organisms from the food web. Very few gave a chain using other animals.
— Examiner report, May/June 2025, 0610/32 Q7(b)(v) (Cambridge)
Most answers were descriptions of a food web rather than an ecosystem.
— Examiner report, May/June 2025, 0610/32 Q7(b)(vi) (Cambridge)
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